Register dial



Inf. QUINLA'N, In.

REGISTER DIAL.

APPLICATION FILED APB. 29, 1921.

Patented Aug. 1,'1922.

UNITED STATES PATENT OFFICE.

PAUL r. QUINLAN, Jn., or ELKTNs PARK, PENNSYLVANIA.

REGISTER DIAL.

Toallas/tom t may concern.' a n `Be it known that LPAUL F. QUTNLAN, Jr., a citizen of the United States of America, and resident of Elkins Park,vin thecounty oif' Montgomery, State of Pennsylvania, have invented a certain new and useful Improvement in Register Dials, of which the following is a true and exact description, `reference being had to the accompanying dravvings, which form a part thereof.

My invention relates to `register dials of the kind commonly 'used in connection Vwith meters in which a series of progressively moving' dials are used, each carrying evenly disposed figures which come progressively into registryfvvith the sight holes formed in the dial plate. In suoli apparatus it is obviously desirable that the sight holes should be long enough to display two of the ligures on a dial but obviously as long as both figures remain in sight there is a vrisk of a inisreading oi the register and the object of my invention is to providek a register dial of the general character described With a simple, light and effective shutter device which Will screen the advancing figure on the dial until it is in iull registry With the sight hole and then move exposing this figure and screening the ligure immediately in advance before it has moved out of registry With the sight hole.

The nature of my improvements will be best understood as described in connection `With the drawings in Which- Figure l is a face View of the dial plate With some or' the dials and shutter actuating mechanism shown in dotted lines.

Figure 2 is a plan View.

Figure 3 is an enlarged vieW taken on the line 3--3 of Fig. 4.

Figure 4 is a side elevation of the mechanism shown in Fig. 3, with the sectioned as on line 4-4, of Fig. 3.

Figure 5 is a side elevation of a modified form of my device taken as on the line 5--5,`

of Fig. 6, and y Figure 6 is a side elevation of the mechanism shown in Fig. 5 in a section taken through the dial plate onthe line 6-6 or' Fig. 5.

A is the dial plate having formed in it a series or' slot-like sight holesA, A', etc. each of suicient length to display tWo of the numbers of a dial. B indicates the back plate of the meter or register secured to the `dial plate by stud C, Cj D, D, are shafts the Hnected with and actuated figures on `falls from the `point of dial plate p Specficationgof Letters Patent. Patented Aug 1 1922. Application filed Aprn 29, 1921. seri-a1 No. 465,376.

and Bl and which shafts are, of course, conby the gears or' the any vordinary charin .the drawing. E, secured to shafts D and each,

meter Whichmay be of acter andvv are not sho-Wn E, E, are dials `ends of which have bearings in the `platesA in my preferred form and construction, il-

lustrated in Figs. l to 4, formed with peripheral cams, one corresponding to each of the the dial and indicated at F", F2, etc. The Yform given to these cams is such as will impart to the shutters hereafter to be described, the necessary movement to effect the .purpose which I have in view. G,

etc. are pivot pins `secured to the face plate` A and on which are pivoted the arms Hand I-I carrying respectively the shutters I and li. H2 is a pin extending lat-- eially from the arm H and resting on the cam'ined periphery of the disk E. The form of the cams and disposition oi' the shutteis must be in eii'ect illustrated in the drawings so that as an advancing' iigure, 7, as shown, moves into the sight hole I-I it is covered by the shutter I While at the same time the shutter I is elevated so that the receding' ligure, 6, as shown, is fully exposed While immediately after the full registry of the gure 'T with the sight hole the pin H2 the receding cam F5 at once to the bottom` F6 with the effect of covering the figure 6 by the shutter F and shifting fully expose the iigure 7. The form of the cams isalso such that as the advancing figure 7 for instance, moves along the sight hole the shutter I is raised so that When the figure reaches the left hand side of the sight hole the shutter is naturally retracted and the shutter I moved into registry With the left hand of the sight hole so as to obscure the advancing figure 8, for instance, until it yis fully in registry with the sight hole.

In a modiiied construction shown in Figs. 5 and 6 the number disks instead of cams are providedivith cam contacting pins indicated at f, 7L', etc. and a cam K pivoted at g on bracket J rides on these pins and carries arms indicated at 7L and /L which in turn carry shutters z' and a" Which operate in connection With the numbered disk and the elongated sight hole A exactly as in the first described construction. The modified structure is obviously an important invention and fully' equivalent to that previously described.

vHaving now described my invention, what of the advancing cam.

the shutter I to carrying l claim as new and desire to secure by Letters Patent, is: y

ln a meter dial comprising two-or more numbered rotating disks and n dial plete having sight openings 'toi-ined through it tor the display olE the numbers in certain positions of the disks, the improvement which consists in forming the sight opening in the dial or such a length us to display two numbers on :L disk 'ln one position ot' the disk, providing;` on ezieh disk a series ot shutter actuating @eine corresponding in number to the numbers on the disk and combining therewith i pair ot shutters ttor euch disk plate, said shutters moving on u common pivot and having a Cain Contacting port-ion octed on by the cams on the numbered disks in connection with which the shutters op erute as described and so that one shutter covers u number moving into registry With the sight hole until it has passed tully 'into said sight hole, the other shutter during this period being retracted from the sight hole, and utter the said number has so fully registered with, the sight hole the ouin rapidly shifts the shutters so that the one uncovers the advancing number und the other ffovers the receding number,

PAUL F. QUINLAN, JR. 

